<template>
  <div class="singer-song">
    <div class="list">
      <van-list
        v-model="loading"
        :finished="finished"
        finished-text="没有更多了"
        @load="onLoad"
      >
        <div
          v-for="(item, index) in list"
          :key="index"
          :title="item"
          class="song"
        >
          <h3>{{ item.name }}</h3>
          <div class="singers">
            <span v-for="(singer, index) in item.singer" :key="singer.id">
              {{ singer.name }}
              <span v-show="index != item.singer.length - 1"></span>
            </span>
            <span v-show="item.album">
              <span>.</span>
              <span>{{ item.album.name }}</span>
            </span>
          </div>
        </div>
      </van-list>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // songlist: [], //歌曲列表
      // singer: [], //歌手名字
      // songnum: 0, //歌曲列表数目
      list: [], //vant的list列表数据
      loading: false,
      finished: false,
      page: 1, //获取api数据的页码
    };
  },
  // 通过props接收父组件的id
  props: ["singeid"],

  methods: {
    getData() {
      this.$request(
        "get",
        "/singer/songs?singermid=" +
          this.singeid +
          "&page=" +
          this.page +
          "&num=30"
      ).then((res) => {
        console.log(res);
        this.list = this.list.concat(res.data.list); //歌曲列表
        // 加载状态结束
        this.loading = false;
        // 页码自动加一
        this.page++;
        // 数据全部加载完成(如果页码加1之后取到的data.list的长度为0,代表数据加载完成,没有数据)
        if (res.data.list.length == 0) {
          this.finished = true;
        }
      });
    },
    onLoad() {
      setTimeout(() => {
        this.getData(); //调用获取分页数据的方法
        this.loading = true; //正在加载
      }, 1000);
    },
  },
};
</script>

<style scoped>
.song {
  margin-bottom: 1rem;
}
.song > h3 {
  text-align: left;
  font-size: 1rem;
  padding: 0 2rem;
  margin: 0;
}
.singers {
  text-align: left;
  padding: 0 2rem;
}
.singers > span {
  font-size: 0.8rem;
  color: gray;
}
.singers > span:nth-last-child(1) > span:nth-child(1) {
  margin: 0 0.3rem;
  font-weight: 900;
  color: red;
}
</style>